Optimization of Anterior Eye Fluorecein Viewing Original Reearch Article

Purpoe To optimize anterior eye fluorecein viewing and image capture. Deign Propective experimental invetigation. Method The pectral radiance of ten different model of lit-lamp blue luminance and the pectral tranmiion of three barrier filter were meaured. Optimal clinical intillation of fluorecein wa evaluated by a comparion of four different intillation method of fluorecein into 10 ubject. Two method ued a floret, and two ued minim of different concentration. The reulting fluorecence wa evaluated for quenching effect and efficiency over time. Reult pectral radiance of the blue illumination typically had an average peak at 460 nm. Comparion between three lit-lamp of the ame model howed a imilar pectral radiance ditribution. Of the lit-lamp examined, 8.3% to 50.6% of the illumination output wa optimized for >80% fluorecein excitation, and 1.2% to 23.5% of the illumination overlapped with that emitted by the fluorophore. The barrier filter had an average cut-off at 510 to 520 nm. Quenching wa oberved for all method of fluorecein intillation. The moitened floret and the 1% minim reached a ueful level of fluorecence in on average not, vert, imilar20 (not, vert, imilar2.5× fater than the aturated floret and 2% minim) and thi lated for not, vert, imilar160 econd. Concluion Mot lit-lamp’ blue light and yellow barrier filter are not optimal for fluorecein viewing and capture. Intillation of fluorecein uing a moitened floret or 1% minim eem mot clinically appropriate a lower quantitie and concentration of fluorecein improve the efficiency of clinical examination.